package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.common.vo.MemberRespVo;
import com.atguigu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录
 */
@Controller
@Slf4j
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session
    , HttpServletResponse servletResponse) throws Exception {

        Map<String,String> map = new HashMap<>();
        map.put("client_id","1034057805");
        map.put("client_secret","5182535795b37a0986a99cd7abe6c81d");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://localhost:20000/oauth2.0/weibo/success");
        map.put("code",code);
        System.out.println(code);
        //1.根据code换取accessToken
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", null, null, map);
        //2、处理
        if (response.getStatusLine().getStatusCode()==200) {
            //获取到了accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);

            //知道当前是那个社交用户
            //1.当前用户如果是第一次进网站 自动注册
            R oauthlogin = memberFeignService.oauthlogin(socialUser);
            if (oauthlogin.getCode() == 0) {
                MemberRespVo data = oauthlogin.getData("data", new TypeReference<MemberRespVo>() {
                });
                log.info("登录成功：用户：{}",data.toString());
                //1.第一次使用session 命令浏览器保存卡号
                //TODO 1.默认发的令牌 session=dsajkdjl 作用域
                //TODO 2.使用JSON的序列化方式来序列化对象数据到redis中
                session.setAttribute("loginUser",data);
                //2.登录成功就跳回首页
                return "redirect:http://localhost:10000";
            } else {
                return "redirect:http://localhost:20000/login.html";
            }

        } else {
            return "redirect:http://localhost:20000/login.html";
        }


    }
}
